A modern Ford vehicle equipped with Fail-Safe Cooling is being diagnosed. The customer says the engine runs rough and the temperature warning lamp is on. Technician A says that the PCM is disabling fuel injectors to keep the engine from overheating. Technician B says that if the temperature reaches 330 ° F, the fuel injectors will shut off. Who is correct?
A) Technician A
B) Technician B
C) Both A and B
D) Neither A nor B

Question

Quizplus · Accepted Answer

Technician A is correct because the Fail-Safe Cooling system in some Ford vehicles is designed to disable fuel injectors to reduce engine power and heat production when overheating is detected, allowing the driver to "limp home." Technician B is also correct because, at extreme temperatures like 330°F, the system may shut off fuel injectors completely to prevent engine damage, indicating both technicians' statements are accurate regarding the system's operation.

A Modern Ford Vehicle Equipped with Fail-Safe Cooling Is Being